Dumb question of the day: Regarding Non-Immigrant O visa, China Taiwan passport.
If one was to leave the Kingdom without canceling the visa or work permit and without applying for Re-Entry, does it mean that both are useless/out? Or there are someeting that needs to be done for both to go out?
TLDR : Answer Summary
If you leave Thailand without canceling your Non-Immigrant O visa or your work permit and without applying for a Re-Entry permit, both the visa and the work permit will be considered invalid. There are no additional steps that need to be taken, as both will automatically be void upon your departure from the country.